What is the difference between PT6 67B and P?
The PT6A-67P is flat rated to 1200 SHP limit in climb as compared to the PT6A-67B which is flat rated to 1000 SHP limit. Enjoy FASTER DIRECT CLIMB to 30,000′ at any weight and temperature combination. Cruise Cruise speed increase based on altitude and OAT. The PT6A-67P is flat rated to 1200 SHP limit in climb as compared to the PT6A-67B which is flat rated to 1000 SHP limit. Enjoy FASTER DIRECT CLIMB to 30,000′ at any weight and temperature combination.
What does PT6 stand for?
PT6 is a turboprop aircraft engine that stands for Pratt and Whitney Canada. Pratt and Whitney Canada originally produced the PT6 in 1956 when the president of PWC ordered his engineers to create a turboprop engine designed to replace piston engines. LONGUEUIL, Quebec – (JULY 16, 2025) Pratt & Whitney Canada is celebrating 40 years of powering Textron Aviation’s Cessna Caravan with its PT6A turboprop engine. Since its first delivery in 1985, every Caravan aircraft delivered – over 3,100 globally – has been powered by the PT6A engine.The PT6 has been used in numerous aircraft, including the Beechcraft King Air, Pilatus PC-12, and Cessna Caravan. Its combination of reliability, low operating costs, and adaptability has made it a preferred engine for passenger transport, cargo operations, and special mission aircraft.
What are the advantages of a PT6 engine?
Engines like the Pratt & Whitney PT6 are legendary for their durability and dependability. Known for simple design, ease of maintenance, and long overhaul intervals, PT6 engines have built a reputation as some of the most reliable turboprops in the world. Reliability and Durability: Modern turboprop engines are known for their reliability. They are built to withstand harsh conditions, which is why they are commonly found in cargo, agricultural, and firefighting aircraft. They are unlikely to fail, whereas piston engines are notoriously unreliable.
How reliable is the PT6A engine?
Over the years, some 47,000 PT6As have been delivered, total flight times are in the neighborhood of 400 million hours, and the engine’s in-flight shutdown rate stands at fewer than three per 1 million hours of operation. Small wonder that most pilots swear the engine is a bulletproof model of reliability. The General Electric GE90 has an in-flight shutdown rate (IFSD) of one per million engine flight-hours. The Pratt & Whitney Canada PT6 is known for its reliability with an in-flight shutdown rate of one per 333,333 hours from 1963 to 2016, lowering to one per 651,126 hours over 12 months in 2016.